Hmm, that sounds like permission errors to me, if you copied the folders off of the CD onto the harddrive or flash drive. It means that Debian thinks you don't "own" the files, not letting you have access. I could be totally off base, though.
*edit* Oh, hah, I read what you wrote again. dpkg -i doesn't work on folders, sadly, just straight up deb files, if you can find any in your folders.
I'm actually going to recommend going back to the CDs, which I hope you've added to your /etc/apt/sources.list file through apt-cdrom add. It looks like the abiword program would be in the tenth CD of the Etch set, if you downloaded that... which I'm not sure you would do... There is, however, Openoffice.org's office suite, which is pretty amazing. I think all of Openoffice is in the first three CDs.
I'm recommending doing it the CD way because if you really wanted to, you could download the *.deb packages individually (through packages.debian.org), but that means downloading ALL of the dependencies, and the dependencies' dependencies(!), and that would take a lot of time and a lot of searching I'd rather not let anyone have to do. I'm hoping the CDs are smart enough to include dependencies, I'm pretty sure they will.
Insert the first CD, open up synaptic if you have it installed (inserting in the CD might automatically ask if you want to open up synaptic, at least it did for me in Ubuntu), and check off openoffice. It will automatically check off all the files openoffice needs along with the program. You might get something saying you need to switch CDs.
If you don't have synaptic, I think you can still do it through apt-get or aptitude.
It might be something along the lines of:
Code:
sudo apt-get update
sudo apt-get install openoffice.org
or
Code:
su (type in root password)
apt-get update
apt-get openoffice.org
exit
By the way, how deep have you looked into the folders? If you want to look up which program belongs on which CD, here's a neat search tool:
Downloading Debian CD images with jigdo.